Mon, 9 May 2011 07:42:58 -0500
Difficult chase forecast for today, May 9th: Two targets, which one to go to? | A significant jet streak will be nosing up into Wyoming today allowing
fairly robust cyclogenesis around the Laramie Range. Southeast winds
will develop over eastern Wyoming in response, bringing in some lower
to perhaps mid 50s dewpoints as far west as harrison, NE and even
Lusk, WY. This is Target #1 (Lusk WY to Harrison, NE). Second target
is a north-south convergence zone whihch will develop north of a
secondary sfc low farther east. Much more abundant moisture will
exist in this area with dewpoints in the mid 60s as far northwest as
central SD by late in the afternoon. Upper winds will be a bit weaker
in this area, but direction shear will still support supercells.
Target #2 is west to northwest of Pierre. Below is the 11z RUC model
and the 06z NAM model valid around 00z time later on today: I will
either head west-northwest to Harrison, NE or north to Murdo, SD (then
northwest from there) leaving around 9am.
I'll update the chasemode status with which target I select.
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#1 | 
#2 |
(click on thumbnails for pop-up of larger images) |
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